Java 8 Supplier

• Stream's generate method returns an infinite sequential stream where supplier generates each element.
• Following are the primitive Specializations for Supplier interface in java.util.function package.
  • IntSupplier  – Represents a supplier of int-valued results. Having one method getAsInt().
  • LongSupplier – Represents a supplier of long-valued results. Having one method getAsLong().
  • DoubleSupplier – Represents a supplier of double-valued results. Having one method getAsDouble().
  • BooleanSupplier  – Represents a supplier of boolean-valued results. Having one method getAsBoolean().

Syntax :

• Let’s say you want to generate 5 random numbers between 0 to 10.
• Stream's generate method returns an infinite sequential stream where supplier generates each element.

Example :

Example: Returns a supplier

Example: Factory